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1 2og repro

zhol0777·1.2og_pcb_clone·pcb/1_2og_repro.kicad_pcb

1 2og repro PCB layout, top view — open source STM32 board by zhol0777

About the 1 2og repro PCB

1 2og repro is an open source STM32 PCB design by zhol0777, published on GitHub. It is a 2-layer board measuring 347.1 × 119.3 mm, with 116 components from 18 distinct parts.

Its main chip is the STM32F072C8TX, from the STM32 family. Other key parts include the XC6206PXXXMR and SN74LVC1T45DBV. By type, the board carries 90 diodes, 12 capacitors, 5 resistors, 3 ICs, 3 connectors and 1 transistor.

From the project

unfinished attempt to re-create pcb and lightbar for matrix 1.2og.

unfinished attempt to re-create pcb and lightbar for matrix 1.2og.

this has been designed by using pcb edge cuts and plate file that were provided courtesy of astro of matrixlab here. without it, re-creating the PCB would be a more maddening and expensive experience. it has 19.02mm x 19.02mm spacing (mostly).

indicator LEDs on scroll lock and caps lock. JST headers are for s3b ph 3 pin, since that's what it looks like from watching youtube build videos.

1 2og repro, from the project README
From the project README

Main components on the 1 2og repro

XC6206PXXXMRSTM32F072C8TXSN74LVC1T45DBV

1 2og repro bill of materials (BOM)

116 components, 18 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
XC6206PXXXMR
XC6206PxxxMR
U1
1
STM32F072C8TX
STM32F072C8Tx
U2
1
SN74LVC1T45DBV
U3
1
2N7002
Q1
1
C2997426
Pico EzMate
J1
1
548190519
J2
1
S3B
J4
1
500MA
500mA
F1
1
SW_Push
SW95
89
C81598
D_Small
D1, D2, D3, D4, D5, D6, D7, D8 +81
1
PRTR5V0U2X
D94
4
100NF
100nF
C1, C2, C3, C4
1
10NF
10nF
C5
3
4.7UF
4.7uF
C6, C7, C12
4
1UF
1uF
C8, C9, C10, C11
2
10K
10k
R1, R5
2
220
R2, R3
1
100K
100k
R6

1 2og repro design files

The KiCad project lives in the zhol0777/1.2og_pcb_clone repository on GitHub; these links point at the commit this page was built from.

1 2og repro: common questions

What microcontroller does the 1 2og repro use?

The 1 2og repro is built around the STM32F072C8TX, from the STM32 family.

How big is the 1 2og repro PCB?

The 1 2og repro measures 347.1 × 119.3 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the 1 2og repro?

116 components, from 18 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the 1 2og repro design files?

From the zhol0777/1.2og_pcb_clone repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the 1 2og repro design in my own project?

The repository has no license, so all rights stay with zhol0777. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the 1 2og repro without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.

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